• The 34XR Digital Multimeter is UL, cUL, and EN61010-1 certified for
Installation Category III – 600V and Category II – 1000V. It is recommended for
use with local level power distribution, appliances, portable equipment, etc,
where only smaller transient overvoltages may occur, and not for primary
supply lines, overhead lines and cable systems.
• Do not exceed the maximum overload limits per function (see specifications)
nor the limits marked on the instrument itself. Never apply more than 1000V
dc/750 V ac rms between the test lead and earth ground.
• Inspect the DMM, test leads and accessories before every use. Do not use any
damaged part.
• Never ground yourself when taking measurements. Do not touch exposed
circuit elements or test probe tips.
• Do not operate the instrument in an explosive atmosphere.
• Exercise extreme caution when: measuring voltage >20V // current >10mA // AC
power line with inductive loads // AC power line during electrical storms //
current, when the fuse blows in a circuit with open circuit voltage >1000 V //
servicing CRT equipment.
• Always measure current in series with the load – NEVER ACROSS a voltage
source. Check fuse first. Never replace a fuse with one of a different rating.
•Remove test leads before opening the Battery Cover or case.
Symbols Used in this Manual
B
TFB
P
I
Battery
Double insulated
Direct Current
Alternating Current
Complies with EU directives
Fuse
WX
J
R
>
Refer to the manual
Dangerous Voltage
Earth Ground
Audible tone
Underwriters
Laboratories, Inc
2
Introduction
The 34XR is a True rms autoranging handheld digital multimeter for measuring or
testing the following:
• DC and AC voltage• Temperature
• DC and AC current• Capacitance
• Resistance• Diodes
• Frequency• Continuity
• Dutycycle
Additional features include: MIN MAX, HOLD, Backlight, and Range Lock
Making Measurements
Verify Instrument Operation
Before attempting to make a measurement, verify that the instrument is operational
and the battery is good. If the instrument is not operational, have it repaired before
attempting to make a measurement.
Range Selection
In addition to autoranging the 34XR allows you to manually select and lock a range
by pressing the RANGE button. RANGE appears on the display to indicate that
manual ranging is active. Each subsequent press of the range button steps the
meter to the next higher range. When the highest range is reached the next press
returns the meter to the lowest range. To return to autoranging press and hold the
RANGE button for 2 seconds. RANGE no longer shows on the display.
Use autorange for all initial measurements. Then, when appropriate, use the RANGE
button to select and lock a range.
Warning
To avoid electrical shock while manual ranging use the display
annunciators to identify the actual range selected.
Correcting an Overload (oor -
An o indication may appear on the display to indicate that an overload condition
exists. For voltage and current measurements, an overload should be immediately
corrected by selecting a higher range. If the highest range setting does not
eliminate the overload, interrupt the measurement until the problem is identified
and eliminated. The o indication is normal for some functions; for example,
resistance, continuity, and diode test.
o
) Indication
W
Measuring DC VoltageSee Figure -1-
1. Set the Function Switch to
2. If RANGE is displayed, press the RANGE button to enable autoranging.
3. Connect the Test Leads: Red to
4. Connect the Test Probes to the circuit test points.
5. Read the display, and, if necessary, correct any overload (
v
.
E
, Black to COM
o
) conditions.
3
Measuring AC Voltage (True rms)See Figures -2- & -3-
See Additional Features to find out the advantages of true rms.
1. Set the Function Switch to
2. If RANGE is displayed, press the RANGE button to enable autoranging.
3. Connect the Test Leads: Red to
4. Connect the Test Probes to the circuit test points
5. Read the display, and, if necessary, correct any overload (
V
.
E
, Black to COM
o
) conditions.
Preparing for Current Measurements
• Turn off circuit power before connecting the test probes.
• Allow the meter to cool between measurements if current measurements
approach or exceeds 10 amps.
•A warning tone sounds if you connect a test lead to a current input before you
select a current range.
• Open circuit voltage at the measurement point must not exceed 1000 V.
• Always measure current in series with the load. Never measure current across a
voltage source.
Measuring DC CurrentSee Figure -4-
1. Set the Function Switch to a
2. If RANGE is displayed, press the RANGE button to enable autoranging.
3. Connect the Test Leads: Red to µAmA or 10A, Black to COM
4. Turn off power to the circuit being measured.
5. Open the test circuit (
6. Connect the Test Probes in series with the load.
7. Turn on power to the circuit being measured.
8. Read the display, and, if necessary, correct any overload (
X
A
function and range.
) to establish measurement points.
o
) conditions.
Measuring AC Current (True rms)See Figures -3- & -5-
See Additional Features to find out the advantages of true rms.
1. Set the Function Switch to a
2. If RANGE is displayed, press the RANGE button to enable autoranging.
3. Connect the Test Leads: Red to µAmA or 10A, Black to COM
4. Turn off power to the circuit being measured.
5. Open the test circuit (
6. Connect the Test Probes in series with the load.
7. Turn on power to the circuit being measured.
8. Read the display, and, if necessary, correct any overload (
X
a
function and range.
) to establish measurement points.
o
) conditions.
4
Measuring Resistance See Figure -6-
1. Set the Function Switch to Ω.
2. If RANGE is displayed, press the RANGE button to enable autoranging.
3. Connect the Test Leads: Red to
4. Turn off power to the circuit being measured. Never measure resistance across
a voltage source or on a powered circuit.
5. Discharge any capacitors that may influence the reading.
6. Connect the Test Probes across the resistance.
7. Read the display. If
to be measured.
o
appears on the highest range, the resistance is too large
E
, Black to COM
Measuring ContinuitySee Figure -7-
1. Set the Function Switch to
2. Connect the Test Leads: Red to
3. Turn off power to the circuit being measured.
4. Discharge any capacitors that may influence the reading.
5. Connect the Test Probes across the resistance.
6. Listen for the tone that indicates continuity (< 35 Ω).
R
.
E
, Black to COM
Checking DiodesSee Figure -8-
1. Set the Function Switch to
2. Connect the Test Leads: Red to
3. Turn off power to the circuit being measured.
4. Free at least one end of the diode from the circuit.
5. Connect the Test Probes across the diode.
6. Read the display. A good diode has a forward voltage drop of about 0.6 V. An
open or reverse biased diode will read o.
G
.
E
, Black to COM
Measuring Capacitance See Figure -9-
1. Set the Function Switch to an appropriate µF function and range.
2. Connect the Test Leads: Red to COM, Black to µAmA
3. Turn off power to the circuit being measured.
4. Discharge the capacitor using a 100 kΩ resistor.
5. Free at least one end of the capacitor from the circuit.
6. Connect the Test Probes across the capacitor. When measuring an electrolytic
capacitor match the test lead polarity to the polarity of the capacitor.
7. Read the display.
P
(-)
Measuring Temperature See Figure -10-
1. Set the Function Switch to °C or °F.
2. Connect the K-type thermocouple to a TEMP adapter (XR-TA).
Match the polarity of the adapter to the polarity of the thermocouple.
3. Connect the TEMP adapter to the
Note: The 34XR is compatible with all K-type thermocouples. The K-type bead
thermocouple supplied with the meter is not intended for contact with liquids or electrical
circuits.
4. Expose the thermocouple to the temperature to be measured.
5. Read the display.
E
5
and COM inputs.
Measuring Frequency See Figure -11-
1. Set the Function Switch to Hz.
2. Connect the Test Leads: Red to Hz, Black to COM
3. Connect the Test Probes to the signal source.
4. Read the display. The Meter will autorange for the best resolution.
Measuring Dutycycle See Figure -12-
1. Set the Function Switch to %.
2. Connect the Test Leads: Red to %, Black to COM
3. Connect the Test Probes to the signal source.
4. Read the display. The Meter will autorange for the best resolution.
Additional Features
Input Test Lead Warning
The meter emits a continuous tone when a test lead is placed in the µA mA or 10A
input jack and the Function/Range Switch is not set to a correct current position. (If
the meter is connected to a voltage source with leads connected for current, very
high current could result). All current ranges are protected by fast acting fuses.
True-rms Measurements
For ac measurements most DMMs average the ac input signal and display the
result as an estimated rms value. This average-responding method is accurate for
sinusoidal waveforms, but can be very inaccurate for distorted waveforms. To
ensure the most accurate measurements, always use a true-rms DMM when
measuring ac voltage or ac current on circuits for the following kinds of
applications:
• Power Supplies - diodes
• Controllers
• Power Limiting - SCR or Triac
• Starting - motors
• Florescent Lighting - ballasts
• Speed Control - motors
• Pulsed Signals
• Any non-sinusoidal ac waveform
MIN MAX Measurements
The MIN MAX function reads and updates the display to show the maximum or
minimum value measured after you press the MIN MAX button.
Pressing the MIN MAX button for less than 1 second will put the meter into a mode
of displaying the maximum, minimum, or actual readings. Each time the button is
pressed, the meter will cycle to the next display mode as shown in the table below.
Press the MIN MAX button for more than 2 seconds to exit MIN MAX.
ButtonDisplayValue Displayed
< 1 secondMAXMaximum value after feature activated
< 1 secondMINMinimum value after feature activated
< 1 secondMIN MAX (blinks)Normal measurement, actual reading
> 2 seconds
Exit MIN MAX
Normal measurement, actual reading
6
Auto Power Off
Auto Power Off is a battery saving feature that puts the meter into a sleep mode if
the Function/Range Switch has not changed position in the last 30 minutes. To
wake the meter turn it off and then on.
The Auto Power Off feature can be disabled to keep the meter from going to sleep.
This feature is useful when using the MIN MAX mode for extended periods. To
disable the Auto Power Off feature use the following procedure:
1. Set the Function Switch to OFF.
2. Press and hold the MIN MAX button while turning the Function Switch to the
desired function.
3. Continue to press the MIN MAX button until the display finishes this
initialization period and the reading settles.
4. Release the MIN MAX button. The Auto Power Off feature will remain disabled
until the meter is turned off and then on.
HOLD Measurements
The HOLD button causes the meter to capture and continuously display a
measurement reading. To use the HOLD feature make a measurement, and then,
after the reading has stabilized, momentarily press the HOLD button. You can
remove the test leads and the reading will remain on the display. Pressing the
HOLD button again releases the display.
Backlight
Pressing the L button illuminates the display with a blue backlight. The backlight
will automatically turn off in about 60 seconds. Frequent use of the backlight will
decrease battery life.
Product Maintenance
Cleaning
To clean the meter, use a soft cloth moistened with water. To avoid damage to the
plastic components do not use benzene, alcohol, acetone, ether, paint thinner,
lacquer thinner, ketone or other solvents to clean the meter.
Troubleshooting
If the meter appears to operate improperly, check the following items first.
1. Review the operating instructions to ensure the meter is being used properly.
2. Inspect and test the continuity of the test leads.
3. Make sure the battery is in good condition. The low battery symbol
when the battery falls below the level where accuracy is guaranteed. Replace a
low-battery immediately.
4. Check the condition of the fuses if the current ranges operate incorrectly.
B
appears
Battery and Fuse ReplacementSee Figure -13-
XW
To avoid electrical shock remove the test leads from both the
meter and the test circuit before accessing the battery or the
fuses.
WARNING
7
To access the battery and the mA fuse remove the two screws holding the
Battery/Fuse Cover in place, and lift the cover from the meter.
To replace the mA fuse, pry it from its clips using a small screwdriver. A spare mA
fuse is located between the battery and the mA fuse.
mA Fuse: Fast Blow 315mA/1000V, minimum interrupt rating 30 kA
(6.3 x 32 mm) (Meterman FP300)
To replace the 10 A fuse: 1) Remove the battery. 2) Remove the four rear-case
screws. 3) Separate the case. 4) Remove the 10 A fuse cover. 5) Remove and
replace the 10A fuse. 6) Re-install the fuse cover. 7) Reassemble the meter.
10A Fuse: Fast Blow 10A/1000V, minimum interrupt rating 30 kA
(10 x 38 mm) (Meterman FP100).
Repair
All test tools returned for warranty or non-warranty repair or for calibration should be
accompanied by the following: your name, company’s name, address, telephone number,
and proof of purchase. Additionally, please include a brief description of the problem or the
service requested and include the test leads with the meter. Non-warranty repair or
replacement charges should be remitted in the form of a check, a money order, credit card
with expiration date, or a purchase order made payable to Meterman Test Tools.
In-Warranty Repairs and Replacement – All Countries
Please read the warranty statement located at the front of this manual and check your
batteries and fuses before requesting repair. During the warranty period any defective test
tool can be returned to your Meterman Test Tools distributor for an exchange for the same
or like product. Please check the “Where to Buy” section on www.metermantesttools.com
for a list of distributors near you. Additionally, in the United States and Canada In-Warranty
repair and replacement units can also be sent to a Meterman Test Tools Service Center
(see below for address).
Non-Warranty Repairs and Replacement – US and Canada
Non-warranty repairs in the United States and Canada should be sent to a
Meterman Test Tools Service Center. Call Meterman Test Tools or inquire at your
point of purchase for current repair and replacement rates.
In USAIn Canada
Meterman Test ToolsMeterman Test Tools
1420 75th Street SW400 Britannia Rd. E. Unit #1
Everett, WA 98203Mississauga, ON L4Z 1X9
Tel: 800-993-5853Tel: 905-890-7600
Fax: 425-446-6390Fax: 905-890-6866
Non-Warranty Repairs and Replacement – Europe
European non-warranty units can be replaced by your Meterman Test Tools
distributor for a nominal charge. Please check the “Where to Buy” section on
www.metermantesttools.com for a list of distributors near you.
European Correspondence Address*
Meterman Test Tools Europe
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
*(Correspondence only – no repair or replacement available from this address.
European customers please contact your distributor.)
8
WARRANTY
This 34XR Digital Multimeter is warranted against any defects of material or
workmanship within a period of three (3) years following the date of purchase of
the multimeter by the original purchaser or original user. Any multimeter claimed
to be defective during the warranty period should be returned with proof of
purchase to an authorized Meterman Test Tools Service Center or to the local
Meterman Test Tools dealer or distributor where your multimeter was purchased.
See Repair section for details. Any implied warranties arising out of the sale of a
Meterman Test Tools multimeter, including but not limited to implied warranties of
merchantability and fitness for a particular purpose, are limited in duration to the
above stated three (3) year period. Meterman Test Tools shall not be liable for loss
of use of the multimeter or other incidental or consequential damages, expenses, or
economical loss or for any claim or claims for such damage, expenses or
economical loss. Some states do not allow limitations on how long implied
warranties last or the exclusion or limitation of incidental or consequential
damages, so the above limitations or exclusions may not apply to you. This
warranty gives you specific legal rights, and you may also have other rights which
vary from state to state.
Specifications
Battery life: 100 hours typical with
General Specifications
Display: 3 ¾ digit liquid crystal display
(LCD)(3999 count) with a 41-segment
analog bar-graph.
Polarity: Automatic, positive implied,
negative polarity indication. Overrange: (
-0o
or (
) is displayed.
Zero: Automatic.
Low battery indication: The
displayed when the battery voltage drops
below the operating level.
o power off: Approx. 30 minutes.
Aut
B
is
Measurement rate: 2 times per second,
nominal.
Operating environment: 0 °C to 45 °C at
<70 % R.H.
Storage temperature: -20 °C to 60 °C, 0
to 80 % R.H. with battery removed from
meter.
Temperature Coefficient: 0.1 ×
(specified accuracy) per °C. (0 °C to 18 °C,
28 °C to 45 °C).
Altitude: 2000 m (6562 feet)
Power: Single standard 9-volt battery,
NEDA 1604, JIS 006P, IEC 6F22.
0o
carbon-zinc. 200 hours typical with alkaline.
Frequent use of the backlight will decrease
battery life.
Dimensions: 196 mm (H) × 92 mm (W) ×
60 mm (D).
Weight: Approximately 400 g including
)
battery.
Box contents:
The 34XR includes the following items:
Test leads w/ alligator clips 1 set
Holster1
Magnet Strap
Temperature Adapter1
K-type thermocouple1
Users Manual
9 V battery (installed)1
mA fuse, 0.315 A/ 1000 V1 spare
1
1
9
Approvals:
LISTED
950Z
Safety: Conforms to UL1244; EN61010-1:
Cat II - 1000V / Cat III - 600V; Class 2,
Pollution degree II.
EMC: Conforms to EN61326-1, criteria B
This product complies with requirements of
the following European Community
Directives: 89/ 336/ EEC (Electromagnetic
Compatibility) and 73/ 23/ EEC (Low
Voltage) as amended by 93/ 68/ EEC (CE
Marking). However, electrical noise or
intense electromagnetic fields in the vicinity
of the equipment may disturb the
measurement circuit. Measuring
instruments will also respond to unwanted
signals that may be present within the
measurement circuit. Users should exercise
care and take appropriate precautions to
avoid misleading results when making
measurements in the presence of electronic
interference.
Electrical Specifications
(Accuracy at 23 °C ±5 °C, <75 % relative
humidity)
DC VOLTS
Ranges: 400mV, 4V, 40V, 400V, 1000V
Resolution: 100 µV in 400mV range
Accuracy: ±(0.5 % rdg + 1 dgt)
Input impedance:
400mV: >100 M
400
±(2.0 % rdg + 5 dgts) on 40M
Open circuit volts: -0.45 V dc typical,
(-1.2 V dc on 400
Overload protection: 1000 V dc or
750 V ac rms
Ω range)
Ω range
CAPACITANCE
Ranges: 4µF, 40µF, 400µF, 4000µF
Resolution: 1 nF
Accuracy:
±(5.0 % rdg + 10 dgts) on 4µF range
±(5.0 % rdg + 5 dgts) on 40µF to
400µF ranges
±(5.0 % rdg + 15 dgts) on 4000µF range
Test voltange: < 3.0 V
Test Frequency: 25Hz
Input protection: 0.315A/1000V fast blow
ceramic fuse 6.3×32mm on µA/mA input
TEMPERATURE
Ranges: -20 °C to 1000 °C, -4 °F to 1832 °F
Resolution: 1 °C, 1 °F
Accuracy:
±(2.0 % rdg + 4 °C) -20 °C to 10 °C
±(1.0 % rdg + 3 °C) 10 °C to 200 °C
±(3.0 % rdg + 2 °C) 200 °C to 1000 °C
±(2.0 % rdg + 8 °F) -4 °F to 50 °F
±(1.0 % rdg + 6 °F) 50 °F to 400 °F
±(3.0 % rdg + 4 °F) 400 °F to 1832 °F
Overload protection: 1000 V dc or
750 V ac rms
FREQUENCY
Ranges: 4k, 40k, 400k, 4M, 40MHz
Resolution: 1 Hz
Accuracy: ±(0.1 % rdg + 3 dgts)
Sensitivity:
10 Hz to 4 MHz: >1.5 V ac rms;
4 MHz to 40 MHz: >2 V ac rms, <5 V ac rms
Minimum pulse width: > 25 ns
Duty cycle limits: > 30 % and < 70 %
Overload protection: 1000 V dc or
750 V ac rms
DUTY CYCLE
Ranges: 0 to 90 %
Resolution: 0.1 %
Pulse widh: >10 µs
Frequency range: 40 Hz to 20 kHz
Accuracy: (5V logic ) ±(2.0% rdg + 5 dgts)
Overload protection: 1000 V dc or
750 V ac rms
CONTINUITY
Audible indication: < 35 Ω
Response time: 100 ms
Overload protection:1000 V dc or
750 V ac rms
DIODE TEST
Test current: approximately 1.2 mA
Accuracy: ±(1.5 % rdg + 3 dgts)
Resolution: 1 mV
Open circuit volts: 3.0 V dc typical
Overload protection: 1000 V dc or
750 V ac rms
ADDITIONAL FEATURES
µA mA, 10A Test Lead Connection: Beeps
to warn test leads are connected to
measure current while Function/Range
Switch is not set to a measure current.
MIN MAX: Displays the minimum or
maximum value detected while making a
measurement.
HOLD: Holds the latest reading on the
display.
RANGE: Manual range mode.
Backlight: Backlight auto-off
approximately 60 seconds
Auto Power off: 30 minutes, typical
REPLACEMENT PARTS
TL36 Test Lead Set with Alligator clips
FP300 mA fuse - Fuse Pack .315A/1000V
(4 each)
FP100 10A fuse - Fuse Pack 10A/1000V
(2 each)
XR-TA Input Adapter for K-type
thermocouple
TP255 K type thermocouple
XR-H2 Magne-Grip
and strap
®
Holster, clip, magnet,
11
1
V
4
5
2
1
%
2
( )
( )
V
3
4
5
2
1
( )
( )
3
12
Input Waveform
Signal d’entrØe
Eingangsschwingungsform
Forma d’onda d’ingresso
Forma de onda de entrada
Sine Wave
Sinuso dale
Sinusschwingung
Onda sinusoidale
Onda sinusoidal
Full Wave, Sine Wave
Onde complŁte, Sinuso dale
Volle Schwingung, Sinusschwingung
Onda sinusoidale, onda intera
Onda completa, Onda sinusoidal
Half-Wave, Sine Wave
Demi-onde, sinuso dale
Halbschwingung, Sinusschwingung
Onda sinusoidale, semionda
Media onda, onda sinusoidal
Square Wave
Onde carrØe
Rechteckschwingung
Onda quadra
Onda cuadrada
Square Wave
Onde carrØe
Rechteckschwingung
Onda quadra
Onda cuadrada
Pulse Wave
Onde impulsionnelle
Impulsschwingung
Onda delI’impulso
Onda de impulsos
Sawtooth Wave
Onde en dent de scie
S gezahnschwingung
Onda a denti di sega
Onda diente de sierra
13
4
A
8
4
2
7
5
1
6
3
( )
( )
5
A
8
4
2
1
%
3
( )
( )
7
5
6
14
6
7
5
4
2
7
1
( )
( )
3
6
( )
( )
1
5
3
2
4
6
15
8
6
3
4
1
5
2
( )
( )
9
7
1
6
3
( )
( )
2
4
5
16
10
5
4
1
11
2
K
( )
( )
3
4
3
1
( )
( )
2
17
12
4
1
13
( )
( )
2
3
(2)
18
(2)
(4)
19
Professional
Digital
U.S. Service Center
Meterman Test Tools
1420 75th Street SW
Everett, WA 98203
Tel: 800-993-5853
Fax: 425-446-6390
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